In My Humble Opinion . . . This is the Coolest
I have owned the Blue and Reds, powered by the Cal 12 movements. Fun to wear, and they do catch people's attention; the red is neat, as being one of the only red watches that we can take seriously . . . so as between the Red, the Blue and the Fume, I cast my vote for the red.
But the one that I wore the most frequently, and enjoyed the most, was the black (or maybe dark gray / charcoal) Lemania 5100-powered guy. If you want 70's craziness, then why stop with the Cal 12 Silverstones . . . add a few more grams of stainless steel, and you take it way over the top. Also, the 5100 layout wins the points for legibility, so we have the crazy, cool 70's look, in a chrono on which you can easily keep track of the minutes. Yes, I miss this one, but it went to a good home, in exchange for a good old Valjoux 72 powered guy, and we had the fairly tale ending . . . that they all lived happily ever after.
Jeff